1

I have been using this device very little but it was use to work, and it also gave me the same issue in the past, the somewhat I was able to upload again.

I tried to use the reset button, and short GRD with RST pins, but nothing helped. The device is recognised as Arduino MRK1000 and connected. I also tried to specify Arduino Zero (Native USB Port). Under Tools > Get Board Info I get:

BN: Arduino MKR1000
VID 0x2341
PID: 0X804E
SN: 414C4E1[...]

My issue:
When I try to upload the sketch (even empty) it hangs forever, or some times it shows the same message shown when you unplug the device while uploading.

No device found on COM5
Failed uploading: uploading error: exit status 1

The serial monitor is unable to connect

Sketch uses 33108 bytes (12%) of program storage space. Maximum is
262144 bytes. Global variables use 3552 bytes (10%) of dynamic memory,
leaving 29216 bytes for local variables. Maximum is 32768 bytes.
No device found on COM5 Failed uploading: uploading error: exit status 1

Attempted resolution actions:
I tried to use the reset button, and short GRD with RST pins, but nothing helped. I tried multiple USB ports, different PC, different cable.

For information about the device:
https://github.com/Makerfabs/Maduino-Zero-4G-LTE https://wiki.makerfabs.com/Maduino_Zero_4G_LTE.html

Requests:
If you could guide me, maybe I can try to "factory reset" the MCU, or maybe try to connect in a different way.
I read about the bootloaders but I don't know how they work and I don't want to try alone and make worse.
The manufacturer didn't reply to my messages,on GitHub I didn't receive any reply either, so this is one last attempt before I throw this into the bin.
If anyone can recommend al alternative board with GPS and LTE/4G connectivity would be a plus.

4
  • windoz computer? Try turning it off then on again, then plug in the Arduino.
    – VE7JRO
    May 18, 2023 at 0:33
  • 2
    use double reset to activate the bootloader. the led should pulsate when bootloader waits for upload
    – Juraj
    May 18, 2023 at 5:16
  • @Juraj how do I do the double reset? I tried in different machines, with different cables, it is definitely the sketch I uploaded that broke it.
    – Norcino
    May 18, 2023 at 15:33
  • 2
    press the reset button twice?
    – Juraj
    May 18, 2023 at 15:45

1 Answer 1

0

As suggested by Juraj (thank you), pushing the reset button twice allowed me to upload an empty sketch and "revive" an otherwise unusable device.

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